What is the Greatest Common Factor of 17121 and 17139?

Greatest common factor (GCF) of 17121 and 17139 is 3.

GCF(17121,17139) = 3

We will now calculate the prime factors of 17121 and 17139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17121 and 17139.

How to find the GCF of 17121 and 17139?

We will first find the prime factorization of 17121 and 17139. After we will calculate the factors of 17121 and 17139 and find the biggest common factor number .

Step-1: Prime Factorization of 17121

Prime factors of 17121 are 3, 13, 439. Prime factorization of 17121 in exponential form is:

17121 = 3¹ × 13¹ × 439¹

Step-2: Prime Factorization of 17139

Prime factors of 17139 are 3, 29, 197. Prime factorization of 17139 in exponential form is:

17139 = 3¹ × 29¹ × 197¹

Step-3: Factors of 17121

List of positive integer factors of 17121 that divides 17121 without a remainder.

1, 3, 13, 39, 439, 1317, 5707

Step-4: Factors of 17139

List of positive integer factors of 17139 that divides 17121 without a remainder.

1, 3, 29, 87, 197, 591, 5713

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17121 and 17139. The biggest common factor number is the GCF number.
So the greatest common factor 17121 and 17139 is 3.

Also check out the Least Common Multiple of 17121 and 17139